I've heard that the NES Classic Mini's official emulator is a little slower, and less accurate, than some 3rd party emulators.

I just wanted to ask if that's true?

And if so, I know that the NES Classic Mini can be hacked so you can put a different emulator on it. I wanted to know how that would affect the legitimacy of a speedrun.

I prefer not to use emulators when speedrunning.

I own an SNES, and I used to have a couple hundred dollars worth of games for it, however I lost most of them a few years ago in some unfortunate circumstances involving my mother and a spring cleaning...

I now only have Super Mario World, and I really want to speedrun other games for the SNES, but my only option would be to buy a bunch of games AGAIN (very expensive, least desirable option).

However, I found some cartridges online that can simply have an SD-card with a bunch of ROMs loaded on it plugged into it.

Before I use this for speedrunning, however, I want to confirm a couple things:

1. That the run would not be considered invalid because "the ROM is technically hacked."
2. That the run would not be considered invalid because "the device is modified."
3. That the device would not qualify as an emulator (I'm pretty sure it wouldn't, but it's always good to confirm).

EDIT: Some examples of what I'm talking about can be found here: http://www.stoneagegamer.com/super-everdrive-basic.html (Super EverDrive) https://shop.retrogate.com/everdrive/super-everdrive-buy (Super EverDrive v2) http://www.stoneagegamer.com/sd2snes-basic.html (SD2SNES)

Also, if an SD-card cartridge IS aloud, but there's only certain ones that are, it'd be nice to know which ones. Or, if any of you have any recommendations on which one to buy, I'll consider your opinions.

I see some speedruns have a different submitted time than what the video shows, but this is obviously because they were hand timing it and they went back through and timed it again.

I was simply wondering what the most accurate way to retime a recorded run would be.